cmm

#### Add a Clearance Plane

This step adds a clearance plane seven millimeters above the top surface of your part. This helps protect your probe from collisions. During execution, when the probe moves between features, the probe moves up to this clearance plane.

1. Select Edit | Preferences | Parameters to show the Parameter Settings dialog box.

2. Click the Clearance Plane tab.

3. In the Active plane area, set the following items:

- Axis to ZPLUS

- Value to 7

4. Mark the Clearance planes active (ON) check box to automatically insert a MOVE/CLEARPLANE command between features you later choose to measure in this tutorial.

5. Click Apply and then OK to close the dialog box. This also inserts a CLEARP command that defines the clearance plane into the Edit window.

6. From the Graphic Items toolbar, click the Show Clearance Plane icon () to show the clearance plane as a translucent image. Your clearance plane should look something like this:

7. From the Graphic Items toolbar, click the Show Clearance Plane icon () again to hide the clearance plane. The clearance plane is still there, it's just hidden.

For more information on clearance planes, see the "Parameter Settings: Clearance Plane Tab" topic in the "Setting Your Preferences" chapter of the PC-DMIS Core documentation.

Go to the next step: "Add Comments"